Dual pivoting wiper system for inkjet printheads

Details Dual pivoting wiper system for inkjet printheads Dual pivoting wiper system for inkjet printheads

1995-10-31

1998-04-28

Hecker, Stuart N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 2165

Patent

active

057451338

ABSTRACT:
A dual pivoting wiper system cleans the nozzle face plate of an inkjet printhead, particularly one that dispenses a pigment based ink. An inkjet printing mechanism has a printhead service station including a sled that moves from a rest position to a wiping position. The wiping system includes a support arm with proximate and distal ends, with the proximate end pivoted to the sled and the distal end pivotally supporting an upright wiper blade. The arm is spring-biased to push the wiper blade into engagement with the printhead. During wiping, the printhead is engaged by wiper blade and the blade remains relatively upright. Any spacing variations between the printhead and the sled are accommodated by spring flexure, and any lack of parallelism of the printhead from a nominal plane is primarily accommodated by pivoting of the blade at the distal end of the support arm.

REFERENCES:
patent: 5252993 (1993-10-01), Tomii et al.
patent: 5394178 (1995-02-01), Grange
patent: 5559539 (1996-09-01), Vo et al.
patent: 5612721 (1997-03-01), Ishize
patent: 5644345 (1997-07-01), Toniolo

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